33-year-old neurology resident with a history of migraine fell backward while
attempting a ski jump, struck his occiput on the snow, and suddenly developed amnesia.
He began asking the same questions repeatedly, was unable to retain any new
information for more than 1 to 2 minutes, and he did not recall any events that
had occurred during the previous approximately 1 year. After about 5 hours memories began to return
gradually, with the most remote memories generally returning first.
medial temporal or part of Papez circuit, bilaterally.